Rope or cable drive for machinery



2 Sheets-Sheet 1.

(No Model.)

- l J. F. OROURKE.

ROPE 0R CABLE DRIVE PORMAGHINBRY. Y N0- 511,094. Patented Dec. 19, 1893.

l (No Model.) 2 Sheets-Sheet 2.

` J. P. O'RUURKE. ROPEOR CABLE DRIVE POR MAGHINBRY.

No. 511,094. Patentednec 1Q, 189s.

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UNITED STATES PATENT OFFICE.

JOHN F. OROURKE, OF STILL-WVATER, ASS-IGNOR OF ONE-HALF TO CHARLES W.SEVILLE, OF MINNEAPOLIS, MINNESOTA.

A ROPE OR CABLE DRlVE FOR MACHINERY.

SPECIFICATION forming part of Letters Patent No. 511,094, dated December19, 1893. Application tiled February l., 1893. Serial No. 460,507. (Nomodel.)

To all whom it may concern:

Be it known that I, JOHN F. OROURKE, a citizen of the United States,residing at Stillwater, in the county of Washington and State ofMinnesota, have invented certain new and useful Improvements in Rope orCable Drives for Machinery, of which the following is a specification. i

This invention relates to mechanism whereby machinery may be driven byropes or cables, and consists in the construction and arrangementofparts as hereinafter shown and described and specifically pointed outinthe. claim.

This invention may be employed to operate any kind of machinery, but forthe purpose of illustration I have shown it in Figures l, 2, 3 and 4arranged to actuate a thrashing machine, to which it is particularlyadapted.

Fig. 1 is a side elevation of a portion of a thrashing machine showingmy improved driving mechanism arranged to operate it. Fig. 2 is a planview of the part shown in Fig. 1. Fig. 3 is a viewsimilar to Fig.I,illus trating a slight modification in the constructioh. Fig. 4: is anend view of the parts shown in Fig. 3.

A represents a portion of the feed end frame work of a thrashingmachine, A2 being the cylinder shaft. Journaled in suitable bearings onthe frame A beneath the shaft AZ is a shorter counter shaft A3, the twoshafts having gears A4 A5 engaging with each other, as in Figs. l and 2,or with friction drums A6 A?, as in Figs. 3 and 4. The shaft A2 isprovided with a drum A8 having two rope or cable grooves or channels ao2, while the shaft A.s is likewise provided with a drum A9 having onerope or cable groove or channel a3.

B is the main driving pulley attached to the portable or other form ofengine when the mechanism is employed to operate thrashing machines, andB2 is an idler sheave'mounted upon a short shaft'B3 which is arranged toslide laterally in its bearings B4 B5, as hereinafter explained. Themain driving wheel B is provided with two rope or cable grooves orchannels of* awhile the idler sheave B2 is likewise provided with onerope or cable groove or channel a5.

D represents the endless rope or cable, which passes from one of thechannels c5 in the main wheel B to groove c2 in the drum AS, and thencedownward and backward and around the drum A9 in its groove a3, andthence upward, and forward, over the drum As in its groove o', (crossingin its passage between the drums the line of the cable which has passedfrom the drum A8 to the drum A, but not coming in contact with it, asshown in Figs. l, 3, and 4.) Frein the drum A8 the cable passes aroundthe main drum B in its groove o?, and thence backward around idler B2 inits groove a6, and thence around the drum B in its groove a5 to theplace of beginning.

As before stated, the idler shaft B3 is free to move endwse in itsbearings B4 B5, so that it will automatically assume its proper positionwith relation to the grooves o4 a5, so as to properly guide the cableand prevent its rnnningoff from the main wheel.

In Figs. 3 and 4 the construction is substantially the same, except thatthe gears AAL A5 are replaced by friction drums A6 A7, as before stated,but the action is substantially the same in both arrangements. Then thefriction drums A6 A7 are employed, the counter-shaft A3 will be arrangedin movable bearings, so that the wrapping of the cable around the drumsAS A9 will draw the drum As toward the drum A9, and thus increase thefrctional contact between the drums A6 A7.

By this simple arrangement, the wrappings of the rope or cable encircleso much of the surfaces of the main driving wheel and the drum on thedriven shaft A2, that the tractive force is greatly increased, and thepower of the mechanism correspondingly increased.

Having thus described my invention, what I claim as new is In a rope orcable drive, the combination of the main shaft A2 with sheave or drumA8, counter-shaft A3 having drum A9, and with connecting gears, maincable drum B and idler sheave B2 self adj ustable laterally, a rope orcable D passing around and enwrapping said drums, main wheel and idler,substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

JOI-IN F. OROURKE.

Witnesses:

LOUIS L. MANWARING,

Trios. FALLON.

IOO

